Home / 3,975.05-5,492.13-2,983.61

Finding the Fourth Proportional to 3,975.05, 5,492.13 and 2,983.61

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Solution

The fourth proportional to 3,975.05, 5,492.13 and 2,983.61 is: 4,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.05 : 5,492.13 = 2,983.61 : x
  2. Step 2: Convert to fraction form
    3,975.05/5,492.13 = 2,983.61/x
  3. Step 3: Cross multiply
    3,975.05x = 5,492.13 × 2,983.61
  4. Step 4: Simplify right side
    3,975.05x = 16,386,373.99
  5. Step 5: Solve for x
    x = 16,386,373.99/3,975.05
  6. Step 6: Final answer
    x = 4,122.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.